Cerberus Prime is a large volcanic planet. The map mainly consists of rocky grounds surrounded by lava, connected by rusty metal platforms. It is not possible for the bros nor for T.O.O.L. to fall into the lava. There are a few buildings on the edges of the map, and there are various explosive barrels lying around, which can be shot a few times to kill groups of T.O.O.L. more quickly. Since enemies will become stronger each revolution, the barrels will become slowly less effective.